Images move when clicked on

User 3109018 Photo

Registered User
1 post

having trouble with a couple of link elements on my webpage once they've been clicked on the images move position. Here's the HTML.

<!DOCTYPE html>
<html lang="en">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta charset="utf-8">
<meta name="generator" content="CoffeeCup HTML Editor (">
<meta name="dcterms.created" content="Tue, 03 May 2022 16:04:53 GMT">
<meta name="designer" content="P Marshall">
<meta name="description" content=
"Domestic & Commercial Electrical Contractor based on Somerset/Devon border in the Southwest of England. Installations, rewires, fault finding and testing">
<meta name="keywords" content="Electrics, Electrician, Rewire, PAT, testing, Heating controls, Home automation">
<title>All Phase Electrical</title>
<link rel="icon" type="image/x-icon" href="/images/favicon.ico"><!--[if IE]>
<script src=""></script>


.header {
padding: 2px 10px;
text-align: center;
font-size: 30px;
background-color: black;
background-image: url('images/blackdown.gif');
background-repeat: no-repeat;
background-attachment: fixed;
background-position: center top;
max-width: 100%;
height: 200px;

.htext {
font-weight: 700;
color: #ffffff;
text-shadow: 1px 1px 1px #919191,
1px 2px 1px #919191,
1px 3px 1px #919191,
1px 4px 1px #919191,
1px 5px 1px #919191,
1px 6px 1px #919191,
1px 7px 1px #919191,
1px 8px 1px #919191,
1px 9px 1px #919191,
1px 10px 1px #919191,
1px 18px 6px rgba(255,255,0,.4),
1px 22px 10px rgba(255,255,0,.2),
1px 25px 35px rgba(255,255,0,.2),
1px 30px 60px rgba(255,255,0,.4);
position: relative;
text-decoration: none;
top: -90px;
right: 420px;
-webkit-box-shadow: 2px 2px 15px 5px rgba(140,140,140,0.92);
box-shadow: 2px 2px 15px 5px rgba(140,140,140,0.92);


.nmark :hover{
-webkit-box-shadow: 2px 2px 15px 5px rgba(0,0,0,.92);
box-shadow: 2px 2px 15px 5px rgba(0,0,0,.92); }

position: relative;
text-decoration: none;
top: -115px;
left: 470px;
-webkit-box-shadow: 2px 2px 15px 5px rgba(140,140,140,0.92);
box-shadow: 2px 2px 15px 5px rgba(140,140,140,0.92);

.tmark :hover{
-webkit-box-shadow: 2px 2px 15px 5px rgba(0,0,0,.92);
box-shadow: 2px 2px 15px 5px rgba(0,0,0,.92);

.topnav {
position: relative;
overflow: hidden;
background-color: transparent;
top: -50px;

.topnav a {

float: left;
display: block;
font-size: 24px;
color: #00ffff;
text-align: center;
padding: 2px 16px;
text-decoration: none;
text-shadow: 2px 2px #008040;

.topnav a:hover {
text-decoration: none;
color: #800040;
text-shadow: 1px 1px #ff0000;

.topnav a:active {
text-decoration: none;
color: #ffff00;

.topnav-right {float: right;

@media screen and (max-width: 600px) {
.topnav a, .topnav-right {
float: left;
display: inline-flex;
overflow: auto;

.item { list-style-type:none;

a.selected { background:transparent; color:#00ff40;

body {
font-family: Arial, sans-serif;
background-color: black;

iframe {
position: absolute;
width: 100%;
height: 73%;
border: 0;

<div class="header">
<h1 class="htext">All Phase Electrical</h1>
<a class="nmark" href="" target="_blank"><img src="images/napit.jpg" alt=""></a>
<a class="tmark" href="" target="_blank"><img src="images/trustmark.jpg" alt=""></a>
<div class="topnav">
<div id="navigation">
<div class="topnav-right">
<a href="pages/locate.html" target="iframe_a">About Us</a> <a href="pages/contact.html" target="iframe_a">Contact</a> <a href=
"pages/support.html" target="iframe_a">Support</a>
</div><a href="pages/default.html" target="iframe_a">Home</a> <a href="pages/services.html" target="iframe_a">Services</a> <a href=
"pages/solutions.html" target="iframe_a">Solutions</a>
var anchorArr=document.getElementsByTagName("a");
var prevA="";
for(var i=0;i<anchorArr.length;i++)
anchorArr[i].onclick = function(){
if(prevA!="" && prevA!=this)
this.className="item selected";
<iframe src="pages/default.html" name="iframe_a" title="Main window" id="iframe_a"></iframe>
User 379556 Photo

Registered User
1,541 posts

Others may have better solutions, but I think the position jumping on click can be cured by putting each of the anchor elements in <div> tags, and transferring the <a> tag classes to the <div> tags as follows.

<div class="nmark">
<a href="" target="_blank"><img src="images/napit.jpg" alt=""></a>
<div class="tmark">
<a href="" target="_blank"><img src="images/trustmark.jpg" alt=""></a>

The above seems to sort the position jumping, but some CSS adjustments may then be needed regarding any changes in the appearance.


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